Consider the following tactic to help improve your experience.
Find and occupy a location where you suspect the enemy will pass through but not linger in.
Determine their possible approach and Setup your weapon to give you maximum firing arc on the most likely possible approach.
Wait until enemies enter your area. Radio your team quietly to inform them of the enemy presence.
Hold off firing until the target(s) are in an optimal range and location, preferably one away from quick access to cover.
This kind of tactic will give you a lot more satisfaction than trying to use a BA rifle as a longarm and trotting about the field.